Prankster dives under America Ferrera's dress on Cannes red carpet

The “journalist,” who has previously targeted Will Smith, Bradley Cooper, Leonardo DiCaprio and others with his stunts, caused commotion on the How to Train Your Dragon 2 red carpet when he crept toward Ferrera, slid behind her, and looked up her gown.

While Ferrara and her co-stars were stunned but remained relatively calm as security guards grabbed Sediuk and hauled him away.

Photos of the incident — along with footage, after 1:05 in the clip — are below.